Lefant's M210 OMNI Fits a Self-Washing Roller Mop Into an 85mm Robot

_{This article is brought to you in partnership with Lefant.}

Lefant's M210 OMNI fits a self-washing roller mop, 20,000Pa of suction and a bagless 800ml dust bin into a robot 280mm across and 85mm tall, sized for the low, narrow gaps under beds, sofas and kitchen cabinets.

Launch deal: from October 5 to October 11, Lefant has cut the M210 OMNI from $499.99 to $349.99 on Amazon, and the code HZ3AMMNI takes another $130 off at checkout, for a final price of $219.99. Get the deal on Amazon.

Roller mops have spread through the top of the robot vacuum market. Instead of dragging a pad or spinning a pair of discs, a cylinder turns against the floor and is rinsed with clean water as it works. Many of the models carrying one are large flagships.

The M210 OMNI takes the format into a much smaller body. It joins Lefant's M5 Pro, the roller-mop robot Technobezz reviewed in June, and Lefant has built it around five features the company names directly: an ultra-slim compact body, the roller mop, Brushless Hollow Suction, the PSD 2.0 obstacle avoidance system and Freemove collision sensing.

An 85mm body built for low furniture

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Clearance decides where a robot vacuum can clean, and the numbers here are small. The M210 OMNI's body measures 280 by 280 by 85mm, which lets it slip under furniture with around 9cm of clearance and between closely spaced chair legs.

Lefant calls it the smallest roller-mopping robot on the market and rates its cleaning coverage at over 95% of a room. The practical gain is in the spaces a larger robot skips: the back of a bed frame, the underside of a low sofa and the kick space beneath kitchen cabinets.

A roller that rinses itself as it mops

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The mop is a 20cm roller spinning at 240 RPM with a constant 15N of downward pressure. Lefant runs it through a four-step cycle on every rotation: fresh water is sprayed onto the roller, the roller scrubs the floor, a built-in scraper strips grime off its surface, and the dirty water is pulled into a separate onboard tank.

Keeping used water apart from clean water means the roller is not spreading the last room's dirt into the next one. Lefant lists coffee, soy sauce, fruit juice, milk and ketchup among the stains the system lifts, and three water flow levels let owners run it lighter on sealed wood or heavier on kitchen tile.

Brushless Hollow Suction leaves hair nothing to wrap around

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Most robot vacuums pull debris in through a spinning brush roll, and long hair wraps around it. The M210 OMNI drops the roll entirely. Its Brushless Hollow Suction inlet is an open channel that draws debris straight in under 20,000Pa of suction, so there is no bar for hair to tangle on and, according to Lefant, no brush roll to replace.

Two side brushes sweep debris from edges and corners toward the inlet. Suction is adjustable across four levels. Lefant pitches the M210 OMNI as ideal for hard floors and homes with pets, where long hair is the usual problem and a tangle-free inlet pays off most.

A dock that handles water, not dust

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The all-in-one base station measures 347 by 320 by 340mm and holds a 2.4L clean water tank and a 1.5L dirty water tank. When the robot returns, the dock refills its fresh water, drains the dirty water, washes the roller and dries it with cold air, so the mopping side needs no hands-on cleaning between runs.

Dust is a different arrangement. There is no auto-empty station and no disposable bag. Debris goes into an 800ml top-load bin on the robot, which Lefant says holds up to two weeks of household dust. The trade is simple: owners empty the bin by hand, and in return there are no replacement bags to buy and no loud evacuation cycle every time the robot docks.

ToF mapping and sensors around the whole body

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Navigation runs on ToF, a time-of-flight laser that maps the home and plans cleaning routes from it. In the Lefant app, owners can control the robot remotely, schedule cleanings and draw virtual walls and restricted areas around spots it should avoid.

Obstacle avoidance comes from the PSD 2.0 system, nine sets of PSD distance sensors with a 190-degree detection range. Lefant says the array leaves no blind zones.

Collision handling is where the design departs from convention. Most robots use a movable front bumper with switches behind it. Lefant's Freemove technology, which the company says is patented globally, replaces that bumper with a one-piece chassis and uses multi-sensor fusion to detect contact around the full body. Fewer moving parts means fewer gaps for debris to collect in, and Lefant says the approach helps the robot free itself when it gets wedged.

M210 OMNI specifications

A 3,200mAh battery rates the M210 OMNI for up to 130 minutes per charge, and it connects over 2.4GHz Wi-Fi, with voice control through Google Assistant and Alexa.

The M210 OMNI's case rests on subtraction: no brush roll to untangle, no dust bags to reorder and no bumper to jam, in an 85mm body built for the low spaces where dust collects. Lefant describes its range as built around compact designs and strong value for money, and this model brings that approach to a mopping format that has mostly lived on flagship models.

The M210 OMNI launched in Europe first, going on sale in Spain in July, and is now on Amazon in the US with a list price of $499.99. Lefant's launch promotion runs from 6:00 AM PDT on October 5 to 11:59 PM PDT on October 11. During that window the M210 OMNI is $349.99, and entering the code HZ3AMMNI at checkout brings it to $219.99. Buy the Lefant M210 OMNI on Amazon.